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2022•Chinese Physics BRequires access

Rogue waves of a (3+1)-dimensional BKP equation

Yu‐Qiang Yuan, Xiao-Yu Wu, Zhong Hua Du

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Abstract

We investigate certain rogue waves of a (3+1)-dimensional BKP equation via the Kadomtsev–Petviashili hierarchy reduction method. We obtain semi-rational solutions in the determinant form, which contain two special interactions: (i) one lump develops from a kink soliton and then fuses into the other kink one; (ii) a line rogue wave arises from the segment between two kink solitons and then disappears quickly. We find that such a lump or line rogue wave only survives in a short time and localizes in both space and time, which performs like a rogue wave. Furthermore, the higher-order semi-rational solutions describing the interaction between two lumps (one line rogue wave) and three kink solitons are presented.

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What this paper is about

We investigate certain rogue waves of a (3+1)-dimensional BKP equation via the Kadomtsev–Petviashili hierarchy reduction method. We obtain semi-rational solutions in the determinant form, which contain two special interactions: (i) one lump develops from a kink soliton and then fuses into the other kink one; (ii) a line rogue wave arises from the segment between two kink solitons and then disappears quickly. We find that such a lump or line rogue wave only survives in a short time and localizes in both space and time, which performs like a rogue wave. Furthermore, the higher-order semi-rational solutions describing the interaction between two lumps (one line rogue wave) and three kink solitons are presented.

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Available abstract

We investigate certain rogue waves of a (3+1)-dimensional BKP equation via the Kadomtsev–Petviashili hierarchy reduction method. We obtain semi-rational solutions in the determinant form, which contain two special interactions: (i) one lump develops from a kink soliton and then fuses into the other kink one; (ii) a line rogue wave arises from the segment between two kink solitons and then disappears quickly. We find that such a lump or line rogue wave only survives in a short time and localizes in both space and time, which performs like a rogue wave. Furthermore, the higher-order semi-rational solutions describing the interaction between two lumps (one line rogue wave) and three kink solitons are presented.

Key concepts: Rogue wave, Soliton, One-dimensional space, Physics, Line (geometry), Hierarchy, Reduction (mathematics), Space (punctuation)

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